Pin-forming and button-pinning machine



July 31, 1923. 1,463,565

J. G. WEGMAN PIN FORMING AND BUTTON PINNING MACHINE Filed June 16 1919 3 Sheets-Shae; l

July 31, 1923. 1,463,565

I J. G. WEGMAN PIN FORMING AND BUTTON PINNING MACHINE Filed June 16', 1919 :5 Sheets-Sheet F I QE/L I 61'. a 36 4 I? I I '1 35 37 i 38 ll I] H q ip .32 llll mun H 1 ma num attl'nnm -J. G. WEGMAN PIN FORMING AND BUTTON PINNING' MACHINE v Fil-ed June 16,.1919 s Sheets-Sheet 5 W am;

Patented July 31, 1923..

UNITED sr res Application filed. June 16, 1919. Serial No. 304,596.

T 0 all whom it may concern Be it known that I, JULns G. VVEouAN, a citizen ofthe United States, residing at Rochester, in the county of Monroe and State of New York, have invented certain new and .useful Improvements in Pin-ForIning and Button-Pinning Machines, of which the following isa specification.

The object of this invention is to provide a new and improved form of machine for forming pins and attaching them automatically to hollow buttons such as are used for advertising purposes.

This and other objects-of this invention will be fully illustrated in the drawings, described in the specification and pointed out in the claims at the end thereof.

In'the accompanying drawings,

' Figure 1 is a top plan View of the pin forming and button pinning machine.

Figure 2 is a front elevation of the. machine. p I

Figure 3 is a side elevation of the machine.

7 Figure 1 is a perspective view of a portion of the machine showing the hopper for the pins, the hopper for the buttons and the pin forming arbor.

Figure 5 is a deta-ilperspective view of the pin forming arbor.

Figures 6 and 7 are top plan views of the arbor shown in Figure 5 showing successive positions thereof while the pin is formed thereon.

s Figure 8 is aside elevation of the, pin forming arbor with a hollow button placed over it ready for the pin to be inserted therein, the button being shown insection.

Figure 9 is a sectional view of the arbor V with a pin in place thereon showing how the pin is offset in-the arbor. V

Figure 10 is a sectional view thru the hop per containing the pins. I

7 Figures 11, 12 and 13 are detail views of certain cams. Y

Figure 14.- is a verticalsectional View of the hopper from which the pins are fed, the section beingtaken. on the line11"-1& of Fi ure 1. i I I f Figure 15 is a vertical sectional view of the mandrel for formingthe pins, the seztion being taken on the line 15"15 of Figure 7 In the several figures of the drawings, like reference numerals indicate like parts.

The machine hereinafter described is mounted on a suitable frame 1 having a bed travel.

plate 2 provided at the top thereof. A pair of rearwardly projecting lugs 3-and 1'ar'e provided with suitable, hearings in which the powershaft 5 is mounted to rotate. :The shaft 5 is driven by a pulley 6"whi'chjis' keyed to the shaft 5 and is driven from v either a line shaft or .an individual electric motor. Also keyed on the shaft 5far'e the cams 7, 8, 9 and 10. Each of these cams is designed to perform a function'in the feeding of the pin and buttons in the forming-of the pins and the placing of the formed pins into a hollow button. These ca -seam to the left as shown at the top of Figure 3. 1

The cam 7 is a cylindrical cam and has its cam surface at one side .thereof'over which the anti-friction roller 11 is adapted to The roller '11 is mountedon the outer end of the arm 12,-which arm is mounted to swing on the pivot pin 13 suitably mounted on the bedflplate 2. The roller 11 is held in contact with the cam surface of the cam 7 by means ofthe spring 1 1 which is fastened at one end thereof to the arm- 12 and at the other end thereof to thejbed plate 2.

Supported On a pair of lugs 15 and 16 provided near the front of the machine is a channel 17 in which the slide 18 is mounted to travel. The slide 18 is provided with a pin 19 which projects upwardly and engages the slot 30 'rovided in the free end of the ar1n12 so t at on the reciprocation of the arm 12 which iscaused by the rotationof the earn 7 theslide 18' is carried back and forth.

The earn 8 is a disc cam and its periphery is adapted to engage the anti-friction roller 20. This roller is carried on the end of the sliding bar 21 on which it is QmOuntedto rotate. The bar21 isgmo'unted to slide in a suitable bearing. 22 provided on top of the bed. plate 2.; A spring 23 is provided fastened at one end to the bar 21 and at the other end to the bearing 22. and holds the anti-friction roller 20 on the end of thejbar 'is adaptedto slide between the guides-31 and 32 and reciprocates between them on thereciprooation of the bar 21 caused by t .e 1'0- bumper pin 38 andthe spring fo-ot 39 which 7 are used for apnrpose which Will presently tation of the cam '8. As will be seen from an inspection of F ures 3 and 4t, the guideway over which we bnttonsare fed from their hopper is elevated from the base plate 4L6 so that the buttons fed therethrough will be placed over the top of the mandrel so as to allow the spring presser foot to force them down over it as soon as the'button is centrally located thereon. I The buttons from the hopper are thus slipped underthe press'er foot which forces thorn over the post 51 and holds them in place thereon while the pin is attached to the inside thereof. V p

Therdisc cam 9 operates on the arm 33 which is mounted to reckon the stud oarriedon the up 'lit 35 mounted on the bed plate. An antiriction'roller 36 carried on the end of the arm 33 is held in contact with the. periphery of the can 9 by means of the spring 37 which is connected at one end. to the'arm and at the other end to thefbedplatefz .fThe free end of the arm fifcarries the appear. V

' "The" disc can lOinalre's en ac the anti-friction roller 40 car i of the'sliding rack 41 The lien id is held in contact with the periphery the car-n10 by means of the-spring Qr-rhich is fastened at one end to the slidingraclr s1 and at the other end to the lug 3. r

' The rack 41 is'mounted tosllde in th'e'hearring 43 provided on the bed plate 2 so as to hold it to a straight line morernent during 7 its reciprocation.

A pair of lugs 4-4: and V the 45 provided no front of the bed plate 2 and in line with the lugs 15'and 16 are adapted to the sn ortin olate 46. V

7 Mounted to rotate between the suppo lng plate 46 and the bed plate 1s a train gearing comprising the pinions 47, 458 and 14:9; The pinions L7; and 48 are held together 'androtate idly around a stud carried on the bed plate The pinion e7 which is of smaller diameter than the pinion s8 is adaptedto mesh with the sliding raclr ll; The movement imparted to the pinion by the sliding rack 41 on the reciprocation thereof imparted to the pinion 459 thru the pinion 48, which pinions mesh with each other.

pinion 49 is fastened to the reduced end Of tho arbo'r 50, whicharbor-is adapted to oscillate in the supporting plate 1-6.,being driven by the rack 41.

' The arbor 50 has an extension or post 51 "of reduceddianieter provicied at the top thereof, which post projects above the sup- Pportinggj plate 26; post 511love a slot 52 out diametrically across The arbor 50 and the support 7 their face into which the pins are fed prior to the forming of thorn will hereinafter be describec. he slot 52-is shallot-7 and horizontalfor a short distance and then end denly increases in depth with shoulder from which it then gradually slopes downward. (See Figure 9;) The arbor and post maybe referred to as a mandrel.

'Mounted on the supporting plate to at the left of the arbor 50 is the pin hopper which chopper pins are allowed to drop froin the upper section "53 of the hopper to the lower sect on 54 oniy when the openings, between ti n1 are in register. These openings are wise enough to permit but one pin to pass at time. In other words, two pins can- 7, not ass abreast although one or more pins ma pass in succession for each swingof.

the 'hopper. Y I r The lowersection 54 has the width of the i'thiclrness of one of the pins so that'only single row can be stacked up therein.

the upper section 58 is rocked over the lower section 54 the openingin the bottorn of the section 53 is inade toregister with the top the section h-tand one or more pins at a time are allowed to drop into it before the section 53 isbrought to its normal position in which the pins are prevented-from drop- Q Ping from the upper section to ithe'lower section of the hopper. The pins-stand in both sections with. the point to the left as shown in FigurelO. V ,5; I

A'groove 76 is cut into'tho supporting plate 46 in line with the'hopper 5%; The

" lowest pin of the hopper ,rests in this groove.

Through this groove the pins 'inay snccess'irely be guided into the slot 52 in the arbor 50. The'feeding of the pins from the :hop-

per 55% is performed by the needle 5"? which needle is carried on the slide 18' to which it is fastened by means of the set screw 58.

Q11 the reciprocation ofthe slide 18 by the arm 12 the needle 57 moves under the hopper 5 1- and forces I p 76 into the slot 52 in the arbor which *is i the lowest pin along the oove positioned to receiite it. The blunt end of the pin passes thru and beyond theslot 52 9.111 rests against the stop 59:, the pointed end oi the pin being at the other e nd of t .e slot in the arbor. The needle 57 isthen n lthdrawn from below the hopper 54 allowanother pinto dropfrorn the hopper into the groove 56 ready to be forced I *out theretrozn into the slot in the arbor. j The blunt end of the pin is guided by the lat spring bracket 6'5 under which the shoulder in the slot with a reverse bend pin passes and is held in place thereby, first while the offset is being bent in the pin and later while the pin is being bent around the post.

lVhile the pin is in this position and before the arbor turns-the arm 33' descends with the bumping pin 38 and strikes the pin in the slot 52 and bends the pintat the forming an offset on the pin which offset holds the pointed end of the pin in a lower plane than the blunt end of the pin. (See Figure 9.) r

When the bumping pin descends, the presser foot 39 descends with it and makes contact with the post first. The presser foot'then yields and lets the pin 38 pass by it,

While the pin is being bent, the bracket 65 holds the end of the pin down and'prevents it from being bent up and thus forces the pin to take a double bend. The free end of this bracket 65 extends forward to the post although it need not make contact with the post. "When the post revolves, the pointed end of the pin is carried under the end of the bracket and is held down by it so that it will pass under-the finger 60 and not engage therewith.

After the pin has been bent in this way, the cam operates to reciprocate the rack which oscillates the pinion a7, which in turn oscillates the arbor thru the pinions as and 49. vVhen the arbor turns in one direction it carries the pin with it which'inr mediately makes contact with the finger by which itis bent against the periphery of the post 51, it being forced into a groove 67 provided in the post 51 which holds the pin more firmly in place thereon.

The arbor 50 is turned slightly more than 180 degrees, during which time the blunt end of the pin is formed intoa semicircle with the pointed end thereof extending across and projecting outwardly therefrom and slightly beyond it.

Just before the forming of the circular part of the pin is complete and before the blunt end of the pin passes the end of the nn 'er 60 a hollow button such as is used i for advertising purposes is slipped over the post and the semi-circle of the, pin

formed thereon so that when the blunt end of the pin has'passed the finger, the circular part of the pin formed on thearbor will eatpand. and automatically snap into place in the groove of the button. 1 After this is con1 pieted the camlO operates to drive the rack in the reverse direction and this in turn oseillates the arbor and post in the reverse direction back to the starting position'shown in Figure ,5.

Thebuttons to which the pins are attached are fed from the hopper 61 in which they are stacked up 7 in a single column.

post 51 and hold it in place thereon until the pin is released from thearbor and allowed to snap in place in the button.

I At this time the arm 33 and the presser foot 39 are normally arrested by the cam 9 .with the p'resser foot about l the post. As the button slides under the presser foot, the presser foot is sprung upwardly and when the button ispositioned over the post, the presser foot springs downwardly again and forces'the button to position on the post. The diameter of the post and other parts is suclrthat thepost, the bent portion of the pin and the upturned end of the fingerc'a-n all engage inside of the button so that the button slides down over and envelops all of these parts as shown in Figure 8. Immediately after the button has reached this position, the blunt end of the pin passes the finger 60 and is released thereby so it: can expand or spring to its natural shape and in so doing it engages with the inside of the button and is held ther'ebvQ It will also be understood'that the slot 52 is much widerthan the pin and has if-shaped sides so that thepin is loose therein'a'nd when the bent part of the pin springs to engagement with the hollow button, the straight part of the pin can disengage itself from the slot or turn sidewisetherein and follow the button. "After the button and pin have come together the cam raises the arm until. the presser foot is about 1;"

'abovethe post, at which time the button 7 with the pin attached thereto may be blown off of the post. The air blast is furnished by a tube-56. Thereafter, .a new pin is insorted in the post and the operation is repeated as above described. The cam 9 is cut to secure this result in the movement of the arm 33L 7 I claim 1. In a'button pinning machine, the com bination of means for feeding buttons,

'means for feedingpinS, means for bending .tion of the pin, into the hollow part ofthe .button and releasingit therein.

' 3. Ina button pinning machine,thecomfbin ation of means forfeeding buttons,means bination of a mandrel having" aslot across.

the end thereof adapted to receive a pin, means for revolvmgthe mandrel, and means for causing the exposed end of the pin to" bend: around tl e outside ofrthe mandrel as themandrel revolves, said meanspermitting the bent portion ofthe pin to expand away from the mandrel when the bend has been completed.

d. In a button pinning machine, the comaround the mandrel asqit turns, permitting the; bent portion of the pm to sprmg away from the mandrelfafter the end of the pin passes the stop. 7

5. a button-pinning machine, the combination of a mandrel having slot across the end thereof, said slot beingshallow at one end ancloeing deep forvthe rest of its length with. .axshoulder between the two depths; V

- 6. Ina button pinning machine, the combination of a hopper for pins and a hopper for but-tons, a mandrel havingl'a slot in the end thereof, means for feeding the pins, one flilfi time into said slot with the pointed end of the in the slot and the butt end of :the outside ofthe slot, means for off setting the pin in the'slot, means for bending the plin around the. mandrel, and means for passing a hollow button over the top of themandrel permitting the pin to expand the button,the pin beingremoved from the mandrel with the button.

,7. In a button pinning machine, the combination, of shaft, a series of cams thereon, r ans operated by one of said cams to feed pins, means operated by a second cam to form tie pins at one end, means operated by a third cam to form {the-pins at the other end, and means, operated by a fourth camto b" no; the button and the pin together and permit the pinto engage the button.

8. In a button pinning machine, the combination of a rotating earn, a lever operated by said cannha slide moved by said lever, a c d'le operated by said.slide,. a grooved plate in which said slide reciproeates, and .a

drel having a groove across the end thereof,

a shoulder located in said groove, said groove being adapted to receive one end of a pin, means-for bumping. the pin-at said shoulder and forming offset thereat in the pin, means forbending about the mandrel one of the free ends of the pinprojecting outside of the groove in said mandrel and means for feeding a hollow button over said mandrel and pressing it down on the mandrel and over the bent portion'of said pin. V v

1 1. in a buttonlpinning'machlne, thecomblnatlon .of a mandrel having a groove across the end thereof adapted to recelve a p n, a

guide bracket located acent to said mandrel and adapted to guide the pin carried by said mandrel, and a finger mounted adjacent to said mandrel against which the pin is carried on the rotation of the mandrel and by which it is bent around the mandrel, said bracket serving to hold the pin in engagement with the mandrel.

7 12. In a. button pinning machine, the combination of a mandrel having a groove across the end thereof adapted to receive a pin, a

a pin for bumping said pin and forming a shoulder thereon, an arm on which said bumping pin is carried, and a presser foot carried on said arm. said bumping pin working past said presser foot, said foot yielding to permit the working of the bumping pinandthe engagement of the button with the mandrel,

14. In a button bination of a with a slot across the end thereof, a stationary upturned finger oinnin in achine; the com-' beside said mandrel. means for rotating the mandrel and causing it LO bend a pin between the mandrel and the {in ger, said mandrel and said finger bein V aole of receiv ing a button thereon, enveloping said pin, said mandrel and the end of said finger, the end of said pin springing into engagement with the button as soon as it is'past the finger. h

15.. In a button pinning machine, the combination of means for feeding buttons, means for feeding pins, means for. bending and holding the'pins under tensiomuneans for placing the button over the pins while under tension, means for engaging the pins with the buttons by' releasing them therein.

16, In a button pinning machine, the combination of means for feeding'buttons, means for feeding pins, a mandrel having a slotted head to receive a part of the pin, means'for feeding pins into the slotted head of said mandrel, means to rotate the mandrel to bend a portion of the pin around the mandrel, and means to place a button over said slotted mandrel after a pin has been bent thereon, and means to release the bent portion of the pin into the inside of the button placed over the mandrel and allow part of Y the unbent portion of the pin to overlap the ed e of the button.

l7. fn a button pinning machine the combination of a horizontal pin feeding mechanism, a horizontal button feeding mechanism located angularly adjacent to said pin feeding mechanism, both of said feeding mechanisms having a common feeding point, a revolving mandrel located at the common feedingpoint of both of said mechanisms adapted to receive both the pins and the buttons fedthereby, a presser foot mounted above said mandrel adapted to force the buttons fed by said button feeding mecha-i nism over said mandrel said mandrel having a V shaped slot formed in the top thereof adapted to receive the pins fed by said pin feeding mechanism, a hammer co-operating -with the slot in said mandrel to form an means to release the pin formed on said mandrel and allowing it to expand into the button held in place over said mandrel.

In testimony whereof I afliX my signature.

J ULES G. WEGMAN. 

